7000系列 Spirahelic直接驅(qū)動壓力表-德威爾Dwyer
7000系列 Spirahelic® 直接驅(qū)動壓力表是我們應軍方的要求獨立開發(fā)的高防震的高精度壓力表，采用了獨特的三重螺旋纏繞的波登管等技術(shù)，Spirahelic® 直接驅(qū)動壓力表重量輕，采用精密制造的平衡式指針，減少了摩擦，改善了靈敏度和精度，它能夠終身保持ASME 2A或3A的精度。
它有軸向和徑向可現(xiàn)場選擇的過程連接方式，于盤面安裝，采用1/4”NPT內(nèi)螺紋和1/2”NPT外螺紋的接頭。防震的工程塑料外殼尺寸符合ASME B40.1標準，當需要時，可選擇正負壓組合量程。
Service: Compatible gases & liquids.
Wetted Materials: Inconel® X-750 alloy Bourdon tube, type 316L SS connection block.
Housing: Black polycarbonate case and clear acrylic cover.
Accuracy: Grade 2A (0.5% FS).
Pressure Limit: 150% of full scale. Gage will maintain its specifications for overpressures up to 150% maximum range. Normal operation should be between 25% and 75% of full scale.
Temperature Limits: -65 to 180°F (-53.9 to 82.2°C).
Sizes: 4-1/2" dial face (114.3 mm), 8-1/2" dial face (215.9 mm) - Design conforms to ASME B40.1.
Process Connections: Two 1/4" female NPT field selectable back or bottom connection.
Weight: 4-1/2" dial face: 16.3 oz (462.1 g); 8-1/2" dial face: 27.3 oz (773.9 g).
Standard Accessory: One 1/4" male NPT stainless steel plug.
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